FIELD: instrument engineering; household appliances. SUBSTANCE: apparatuss comprises casing 1, measuring chamber with lower compartment 2 and upper compartment 3, inlet 4 and outlet 5 pipes, tip 6, magnetic clutch 7, counter 8, straight-blade turbine 9, valve 10, seat 12 with chamfer 11 on internal side surface, ring 13, tangential openings 14, flow turbulizers 15. EFFECT: improved design for gas quantity measurements under household conditions. 2 cl, 4 dwg
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